To solve this problem,this paper using distributing density size of the data dot as weighted value,together with semi-supervised learning,presents a semi-supervised and dot density weighted FCM algorithm.

With consideration of the effect of vehicle density on travel speed in the road link,the weighted density of road link was defined to represent the road link state when vehicles enter into the road link.

For lack of sparseness characteristic in support vector machines(SVM) by least squares solution(LSSVM),a density weighted pruning algorithm to improve the sparseness of the LSSVM regression model is investigated.

Furthermore,another two new aggregation operators are put forward: two-dimensional density weighted arithmetic averaging operator(TDWA) and two-dimensional density weighted geometric averaging operator(TDWGA).

Improved Design and Practice of Density Weighted Array Based on Statistical Related Theory and Genetic Algorithm;

After the separation of the network,the main network is extracted in which weighted centrality is calculated and betweenness on the basis of boundary nodes is developed which results in the reduction of amount of computation.